Supplementary material for: Increase in metazoan ecosystem engineering prior to the Ediacaran-Cambrian boundary in the Nama Group, Namibia Alison T. Cribb Charlotte G. Kenchington Bryce Koester Brandt M. Gibson Thomas H. Boag Rachel A. Racicot Helke Mocke Marc Laflamme Simon A. F. Darroch 10.6084/m9.figshare.9830927.v1 https://rs.figshare.com/articles/journal_contribution/Supplementary_material_for_Increase_in_metazoan_ecosystem_engineering_prior_to_the_Ediacaran-Cambrian_boundary_in_the_Nama_Group_Namibia/9830927 Trace fossil descriptions and occurrences, demonstration of pairing between plug-shaped burrows, point-counted bedding-plane bioturbation, EEI and cube assignments, and sedimentary structures 2019-09-14 06:45:22 Ediacaran trace fossil ecosystem engineering Cambrian extinction